I don't think you can compare traditional gas/diesel fuel stations with EV charging stations as there is no equivalency. Unlike gas stations you can charge a vehicle practically anywhere you find a three prong 110V or 240V outlet so combined with charging stations there is a different metric. Currently 80% of EV charging is done at home or businesses with long range driving an issue for some but not most.
Nevertheless, there are currently nearly 50,000 electric vehicle charging stations in the US (AC Level II and DC fast chargers - (as of 2019 - 47,886 as of 11/2017). The number is increasing exponentially, especially fast chargers. There are currently charging stations in every US state and it won't take long for the full network to be built out.
https://insideevs.com/news/335123/n...in-us-increased-to-48000-15000-in-california/
Even the small rural town I live near (pop.12,000) has an eight bay Tesla charging station and about ten independent other charging stations provided by the local municipality (in public parking lots), at car dealerships, hotels and other businesses. There are also some local Inns with affiliated Tesla charging stations intended specifically for travelers staying at these establishments but not available to the general public.
Currently, it is predicted that the cost of the average electric vehicle will achieve parity in price with internal combustion engines in 2022 which will herald the tipping point for widespread adoption of EVs. The fact that EVs save so much money on the costs of car ownership with no need to purchase gas or oil, or pay for engine maintenance and related repairs adds enormously to their appeal.
Unlike traditional gas stations, EV charging stations can be erected in a matter of only a couple of weeks or even less. I watched our local Tesla station going up and it felt as if it just sort of "appeared" out of nowhere.
It's basically a giant transformer and the individual chargers. The transformer is in the big wooden box you see on the left. This is why this infrastructure can be built out so quickly.
![teslaSG-.jpg teslaSG-.jpg](https://dashcamtalk.com/forum/data/attachments/45/45864-0a45893cfc9a55b59f55d12b0377608b.jpg?hash=CkWJPPyaVb)